CVE-2021-39031Network attack vector

Unauthorized resource access via LDAP injection

Published Jan 25, 2022 · Updated Sep 16, 2024

LDAP injection in IBM WebSphere Application Server Liberty 17.0.0.3 through 22.0.0.1 allows remote authenticated users to access unauthorized resources. IBM has not published the affected function or how the specially crafted request is incorporated into an LDAP operation. Exploitation requires the ldapRegistry-3.0 feature and authentication, and it grants permission beyond the authenticated account's authorization.

CVSS severity7.5
High
EPSS probability2.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

LDAP injection in IBM WebSphere Application Server Liberty 17.0.0.3 through 22.0.0.1 allows remote authenticated users to access unauthorized resources. IBM has not published the affected function or how the specially crafted request is incorporated into an LDAP operation. Exploitation requires the ldapRegistry-3.0 feature and authentication, and it grants permission beyond the authenticated account's authorization.

The record

CVE
CVE-2021-39031
Published
Jan 25, 2022
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM WebSphere Application Server Liberty
Classifications
CWE-74, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.0.0.3
  2. Affected versionversion=22.0.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM WebSphere Application Server Libertyversion=17.0.0.3; version=22.0.0.1

Published CVSS scores

7.5IBMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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